[FLINK-14371] Enable ClassLoaderITCase to pass with scheduler NG

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.10.0
• Fix Version/s: 1.10.0
• Component/s: Runtime / Coordination, Tests
• Labels: pull-request-available
• Assignee: Zhu Zhu
• Reporter: Zhu Zhu
• Created: 11/Oct/19 09:25
• Updated: 05/Nov/19 15:06
• Resolved: 05/Nov/19 15:06

Description

ClassLoaderITCase, EventTimeWindowCheckpointingITCase and WindowCheckpointingITCase now fail with scheduler NG.
There are 3 reasons for the failure:
1. state restore is not supported in scheduler NG yet
2. the cause of the expected exception is a bit different
3. there are multiples tasks in multiple regions, which will result in more failovers than expected as scheduler NG is using region failover

We need to support the state restore in scheduler NG and the fix the case issues. And then annotate them with AlsoRunWithSchedulerNG.

Issue Links

• is blocked by: FLINK-14375 Avoid to notify ineffective state updates to scheduler
• is blocked by: FLINK-14389 Restore task state in new DefaultScheduler
• is related to: FLINK-14366 Annotate MiniCluster tests in flink-tests with AlsoRunWithSchedulerNG
• links to: GitHub Pull Request #10071